WASHINGTON -- While some government and industry officials have repeatedly said there's no silver bullet to improve the safety of oil trains, a persistent problem runs through every new derailment: the tank cars.

Q: I'm trying to build more camaraderie among my team at work. We've got people of all ages and backgrounds and, while people seem well intentioned, the group isn't jelling as quickly as I'd like. What can I do to help us come together?